Human Factors Guidelines to Develop Educational Tip Cards for Aging Road Users [summary]

Charness, Neil · 2017 · ROSA P / Florida. Dept. of Transportation. Research Center

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Summary

This study addresses the challenge of educating aging road users about new or unfamiliar traffic control devices, such as the Flashing Yellow Arrow (FYA), Rectangular Rapid Flashing Beacon, and Right Turn on Red (ROR). As the driving population ages and traffic infrastructure evolves, there is a risk that older drivers may misinterpret new signals, potentially leading to serious crashes. The research aimed to determine what information and design features in educational tip cards are most effective for improving driver understanding and safety. Researchers from Florida State University, specialists in cognition and communications, developed a human factors checklist to guide the design of these educational materials. They created two types of tip cards for three specific traffic devices: "standard" cards, which were already in use by the Florida Department of Transportation, and "enhanced" cards, which incorporated the new human factors guidelines while retaining the same informational content. The study involved three distinct experimental phases involving younger (21–35), middle-aged (50–64), and older (65+) drivers. First, researchers assessed learnability by measuring how quickly participants understood the card information. Second, they tested long-term memorability one week later by having participants make rapid judgments about still images of intersections, comparing performance between photographic images and illustrations. Third, a video-based driving simulator exercise was conducted with middle-aged and older drivers who read relevant and irrelevant tip cards before navigating simulated courses containing FYAs or ROR devices. The results indicated that enhanced tip cards conveyed information in less reading time than standard cards, with equal levels of user satisfaction. However, there was no significant difference in long-term memorability between the two card types, and overall performance remained high even without prior exposure to the cards. Notably, photographic images led to better performance than illustrations in the memorability tests. In the driving simulator exercise, the enhanced cards were found to be effective and well-accepted by both middle-aged and older drivers. These findings led to the creation of an updated human factors checklist and tip card templates. The significance of this research lies in its potential to improve driver safety by enhancing the effectiveness of educational materials. By applying human factors principles to the design of tip cards, transportation agencies can better support aging road users in understanding complex traffic control devices. This improved understanding can reduce the likelihood of misinterpretation and subsequent crashes, benefiting road users of all ages. The study provides actionable guidelines for designing educational tools that are both efficient and accessible, addressing the critical intersection of aging demographics and evolving traffic infrastructure.

Key finding

Enhanced human-factors tip cards conveyed traffic-control-device information in less reading time than standard cards while achieving equal user satisfaction, and photographic images yielded better recognition than illustrations.

Methodology

mixed_methods

Provenance

The full processing record for this entry. Every stage of this paper's journey through the pipeline is logged — what ran, with which tool and model, how many attempts it took, and when it last completed. Discovered via bulk_ingest_rosap on 2026-05-23 (7 acquisition events logged).

Summary generated by qwen3.6-27b-prismaquant on 2026-06-10; verification: verified.

Topics

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• older driver retraining